CN110030336A - A kind of more gear electric car power-driven systems containing V belt translation - Google Patents
A kind of more gear electric car power-driven systems containing V belt translation Download PDFInfo
- Publication number
- CN110030336A CN110030336A CN201910329939.5A CN201910329939A CN110030336A CN 110030336 A CN110030336 A CN 110030336A CN 201910329939 A CN201910329939 A CN 201910329939A CN 110030336 A CN110030336 A CN 110030336A
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- Prior art keywords
- gear
- duplex
- wheel
- brake
- clutch
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a kind of more gear electric car power-driven systems containing V belt translation, mainly by motor, planetary gear train and ordinary gear train, differential mechanism is constituted feature；Brake portion uses nesting type structure inside and outside the first brake and internal gear, and the conversion of gear is realized by alternately braking, then realizes the conversion of another gear with connection by the disconnection of clutch；In addition, parking braking part locks planet carrier using second brake, and then power transmitting is disconnected to realize the locking of vehicle.The present invention has 2 forward gears, a stopping brake gear, while transmission efficiency is high, compact-sized, shift mode is simple, provides a kind of new scheme reference to existing power transmission system for electric vehicle structure, has preferable use value and application prospect.
Description
Technical field
The invention belongs to electric car drive areas, and in particular to a kind of more gear electric cars containing V belt translation are driven by electricity
System.
Background technique
Automatic gearbox common are four kinds of patterns: be that hydraulic automatic speed variator (AT), mechanical stepless are automatic respectively
Speed changer (CVT), electric-controlled mechanical automatic speed transmission (AMT), double-clutch automatic gearbox (DCT).It is generally used on car
Be AT automatic transmission, gear-driven form is mainly Planetary Gear Transmission, and use two row or multi-row planetary gear train
The form of tandem sequence transmits power.Planetary Gear Transmission has the advantages that a series of uniquenesses compared with fixed axis gear is driven, it may be assumed that row
Star transmission is a kind of often engaged transmission, is particularly conducive to realize power shift or fluid drive；It is close coupled type transmission, with dead axle
Formula is compared, and speed changer radial dimension can be obviously reduced；Since it is multi point engagement transmission, therefore can be with small when transmitting same torque
Module, so that size is small, light-weight；Furthermore the symmetry of multi point engagement not only makes balanced radial force, and keeps movement flat
Surely, shock resistance and vibration ability is strong, the service life is long.But with fixed axis gear transmission compared with, the disadvantage is that: structure is complicated, manufacture and
It installs relatively difficult；And hydraulic automatic speed variator is much lower compared with manual transmission transmission efficiency.
Double-clutch automatic transmission by the alternatings of two clutches in conjunction with gearshift procedure is completed, so when gear shift
It is steady rapidly, it not only ensure that the acceleration of vehicle, but also greatly improve gear shift comfort.Double-clutch type automatic gear shifting
Device is due to using fixed axis gear transmission system, so transmission efficiency is high, fuel economy is good.But since its structure uses dead axle
Gear drive so the radial dimension of double-clutch automatic transmission is larger compared with hydraulic automatic speed variator, thus is arranged
The relative difficulty on automobile.And since double-clutch automatic transmission is developed by parallel-axis type manual transmission,
So its gear quantity used is just relatively more, therefore can be higher in processing cost.
Patent CN102943871A discloses scheme are as follows: a kind of Transmission Ratio Control device of variable v-belt drive comprising straight
Flow motor and controller, two groups of teeth wheel drive mechanism, two groups of screw machanisms, Liang Zu spring assist mechanism and plane axis
It holds several with needle bearing.Wherein, power source of the direct current generator as the Transmission Ratio Control of speed changer, by motor steering and turn
The control at angle, and will by two groups of teeth wheel drive mechanism and the screw machanism being respectively connected with it and under the cooperation of spring
Motor corner is converted into the axial displacement of the belt wheel Moving plate of variable v-belt drive, so by change V-type transmission belt with it is master and slave
The contact radius of movable belt pulley disk realizes the consecutive variations of speed ratio under stepless transmission difference operating condition.
Patent CN205118188U discloses scheme are as follows: and a kind of high to low gear motor wagon speed changer belongs to speed changer field,
Structure includes procapsid and back casing, and procapsid and back casing are buckled into case of transmission, the installed in front of the procapsid
There is clutch cap, an axis is installed in clutch cap, the rear end of an axis and two axis connections in transmission case body, after back casing
End is equipped with two axis rear covers, and for the rear side of two axis in two axis rear covers, two thes tip of the axis are equipped with brake assembly；Case of transmission
Jackshaft is installed and the idler shaft that reverses gear below interior two axis.
Patent CN104149612A discloses scheme are as follows: a kind of double-clutch speed changer electronic parking mechanism, including park pawl
And parking ratchet wheel；The park pawl is selectively engaged on the parking ratchet wheel by the control of a parking pull-fork assembly；
The parking pull-fork assembly is controlled by the gear-shifting actuating mechanism of speed changer；The gear-shifting actuating mechanism includes driving electricity
Machine, transmission mechanism, reversal means and selector fork component；The parking pull-fork assembly and selector fork component are set in described in sequence
In reversal means and receive the control of the gear-shifting actuating mechanism.By the way that parking control system is integrated on transmission shift system,
Shift control effectively is utilized, an individual parking driving motor and transmission mechanism have been saved, to reduce speed change
Space needed for device is conducive to the arrangement of speed changer.
Therefore, if invent it is a kind of use gear-driven form to be driven tandem compound for Planetary Gear Transmission and fixed axis gear,
Have that transmission efficiency is higher, gear shift is steady rapidly, dynamic property and better economy automatic transmission transmission scheme, necessarily has wide
Wealthy application prospect.
Summary of the invention
Structure is complicated for automotive transmission, manufactures and installs the problems such as relatively difficult, and the invention discloses one kind to contain band
More gear electric car power-driven systems of transmission, feature is mainly by motor, planetary gear train and ordinary gear train, differential
Device is constituted；Brake portion realizes turning for gear using nesting type structure inside and outside the first brake and internal gear, by alternately braking
It changes, then realizes the conversion of another gear with connection by the disconnection of clutch；In addition, parking braking part is using the second braking
Device locks planet carrier, and then disconnects power transmitting to realize the locking of vehicle.
The present invention adopts the following technical scheme that in order to solve the technical problem
A kind of more gear electric car power-driven systems containing V belt translation of the present invention, it is characterised in that multi-shifting speed variator is by leading
Body transmission system, shifting control system, braking system and differential mechanism are constituted；The main body transmission system includes belt wheel transmission again
Group, fixed axis gear transmission group and Planetary Gear Transmission group；The belt wheel transmission group is made of small pulley, big belt wheel, the small band
First rotation axis of wheel and the output shaft of motor connect firmly；The fixed axis gear transmission group includes the first duplex left gear, dead axle tooth
It takes turns, internal gear, the first duplex left gear and the fixed axis gear external toothing, is nibbled in the fixed axis gear and the internal gear
It closes；The Planetary Gear Transmission group is by the first duplex right gear, the first planetary gear, the second planetary gear, the first sun gear, planet carrier
It constitutes, the first duplex right gear and the first planetary gear external toothing, first planetary gear and second planetary gear
External toothing, second planetary gear and the first sun gear internal messing, the big belt wheel, the first duplex left gear, institute
The first duplex right gear is stated to connect firmly by the second rotation axis three；
The shifting control system is made of clutch and the first brake, and clutch outer is connected firmly with the planet carrier,
The clutch inner ring is connected firmly with the internal gear；First brake is fixed on shell, and is symmetric up and down；
The braking system is made of second clutch, and the second clutch outer ring is connected with shell, inner ring with it is described
First planetary gear is connected, the planet carrier connects firmly；
The differential mechanism all uses zerol bevel gear to be driven, and the differential mechanism is single planetary row structure, including the first center
Left gear, the second duplex left gear, the second duplex right gear, the third line star-wheel, the second center right gear, planet carrier H；Described
One center left gear is engaged with the second duplex left gear, and the second duplex right gear is engaged with the third line star-wheel,
The third line star-wheel is engaged with second center left gear；The second duplex left gear and the second duplex right gear
It connects firmly, and forms revolute pair with the planet carrier；The third rotation axis of first center left gear is connected firmly with left wheel, described
4th rotation axis of the second center left gear is connected firmly with right wheel.
Compared with the prior art, the invention has the advantages that:
1. the present invention realizes gear shift operation using two brakes and a clutch, there is compact-sized, shift efficiency
Feature high, occupied space is few.By the mutual cooperation present invention of two brakes and clutch tool, there are two forward gears
It is kept off with a parking, cumbersome gearshift is replaced by brake, can guarantee that shift process gear is in engagement shape always
State, shift shock is small, radiating condition is good.
2. the present invention uses double reduction, the first order, which is slowed down, uses V belt translation, and V belt translation has structure simple, and transmission is flat
Surely, cheap, buffer absorbing the features such as, the second level slow down use gear drive, while use dead axle transmission and Gear Planet Transmission,
A gear transmission ratio and the biggish adjustment space of second gear transmission ratio can be obtained by the rational allocation number of teeth；It can satisfy different regions road
The design requirement of condition, adaptability are stronger.
3. halting mechanism of the present invention is using the directly locked planet carrier of second brake, to make power that can not be transferred to differential
Device, differential mechanism of the present invention is compared with conventional carrier, zerol bevel gear in structure, relative reduction cost.
4. the present invention is compared to the prior art, solve that the generally existing bearing capacity of retarder is low, noise is big, shifting
Can difference the problems such as, have the characteristics that design that reasonable, compact-sized, low noise, shifting comfort be good, high reliablity.
Detailed description of the invention
Fig. 1 is gear transmission structure schematic diagram；
Fig. 2 is the power transmission line figure of a gear；
Fig. 3 is the power transmission line figure of second gear；
Wherein: 1 driving pulley, 2 driven pulleys, 3 first duplex left gears, 4 intermediate gears, 5 internal gears, 6 first duplexs
Right gear, 7 first planetary gears, 8 second planetary gears, 9 first sun gears, 10 first center left gears, 11 second duplex left gears,
12 second duplex right gears, 13 the third line star-wheels, 14 second center right gears, 15 right wheels, 16 left wheels, B1First braking
Device, B2Second brake, I first rotation axis, II second rotation axis, III third rotation axis, IV the 4th rotation axis, C clutch, H
Planet carrier, M motor.
Specific embodiment
As shown in Figure 1, the present invention relates to a kind of formulas containing V belt translation two to keep off electric car power-driven system, feature is main
By motor M, first order deceleration V belt translation, second level reduction gear, the first brake B1, second brake B2, clutch
C, halting mechanism, differential mechanism and shell composition, the first order speed reducing pulley transmission pass through the second rotation axis II and described second
Grade reduction gear is connected, and the second level reduction gear is connected with differential mechanism by planet carrier.
First rotation axis I is connected firmly by key with driving pulley 1, and driving pulley 1 is connect with driven pulley 2 by belt, from
Movable belt pulley 2 is connected by bearing and duplicate gear, while being engaged with the first duplex left gear 3 with intermediate gear 4, intermediate gear 4
It is engaged with internal gear 5, internal gear 5 is connected by clutch with the left end planet carrier H, the centre planet carrier H and second brake B2Phase
Even, planet carrier H right end is connected with differential mechanism；First duplex right gear 6 and the first planetary gear 7, the second planetary gear 8, planet carrier H structure
Embark on journey unit star driving wheel system, while the second planetary gear 8 is engaged with the first sun gear 9, the first sun gear 9 and the first brake B1Phase
Even；First center left gear 10 and the second duplex left gear 11, the second duplex right gear 12, the third line star-wheel 13, the second center
Right gear 14, planet carrier H constitute differential mechanism, the first center left gear 10, the second center right gear 14 with respectively with left wheel 16,
Right wheel 15 is connected by third rotation axis III, the 4th rotation axis IV.
The working principle of the invention is described as follows:
It is required according to the speed per hour of existing electronic vehicle, and combines special road conditions to vehicle deceleration requirement, design gear tooth
Number is as shown in table 1.
1 number of gear teeth table of table
The executive component of each gear is as shown in table 2.
The shift executive component worksheet of table 2
Note: "●" indicates to combine in table, and "○" indicates separation；
In conjunction with Fig. 1 and table 2, each transfer route that keeps off is described as follows:
1. neutral gear (N)
When neutral gear, the first brake B1With second brake B2In discrete state, clutch C is separated, at this time motor M
Power can not be transferred to planet carrier, vehicle relies on inertia traveling or stationary.
2. forward gear (D)
(1) forward gear (D1 gear)
As shown in Fig. 2, motor rotates forward, the first brake B1It keeps combining, second brake B2It disconnecting, clutch C is disconnected,
Since clutch C is separated, so fixed shaft gear train 3,4,5 can not transmit power to planet carrier, simultaneously because the first brake B1It protects
Hold combination, the first sun gear 9 becomes to fixed gear, and power is transferred to the first duplicate gear right end, and the first planetary gear 7, the
Two planetary gears 8 constitute planetary gear train, power are transferred to differential mechanism by planet carrier H, then through differential mechanism dispensing rate to left and right
Wheel.
(2) advance second gear (D2 gear)
As shown in figure 3, motor M is rotated forward, the first brake B1It disconnects, second brake B2Keep separation, clutch C with
Internal gear 5 combines, and gear 5 and planet carrier H are connected at this time, and power passes through the first duplex left gear 3, intermediate gear 4, internal gear 5
The fixed shaft gear train constituted is transferred to differential mechanism, then through differential mechanism dispensing rate to left and right wheels.
3. shift process
One gear shifts into second, by shift control unit by the first brake B1It is powered and combines, second brake B2It keeps dividing
From fixed shaft gear train is separated with planet carrier H, transmits power by planetary gear train.
Second gear changes a gear, by shift control unit by the first brake B1Power-off separation, clutch C are combined, i.e., will be determined
Axis train transmits power in conjunction with planet carrier H, while planetary gear train being separated with planet carrier.
4. parking (P)
When vehicle stopping needs parking, second brake B2It is powered, planet carrier and shell is fixed, to can not transmit
Power realizes stopping brake.
Claims (4)
1. a kind of more gear electric car power-driven systems containing V belt translation, it is characterised in that multi-shifting speed variator is by main body power train
System, shifting control system, braking system and differential mechanism are constituted；The main body transmission system includes belt wheel transmission group, dead axle tooth again
Take turns transmission group and Planetary Gear Transmission group；The belt wheel transmission group is made of small pulley (1), big belt wheel (2), the small pulley
(1) output shaft of the first rotation axis (I) and motor (M) connects firmly；The fixed axis gear transmission group includes the first duplex left gear
(3), fixed axis gear (4), internal gear (5), the first duplex left gear (3) and the fixed axis gear (4) external toothing, it is described fixed
Shaft gear (4) and the internal gear (5) internal messing；The Planetary Gear Transmission group is by the first duplex right gear (6), the first planet
Take turns (7), the second planetary gear (8), the first sun gear (9), planet carrier (H) are constituted, the first duplex right gear (6) and described the
One planetary gear (7) external toothing, first planetary gear (7) and the second planetary gear (8) external toothing, second planetary gear
(8) with the first sun gear (9) internal messing, the big belt wheel (2), the first duplex left gear (3), first duplex
Right gear (6) is connected firmly by the second rotation axis (II) three.
2. a kind of more gear electric car power-driven systems containing V belt translation according to claim 1, it is characterised in that described
Shifting control system is by clutch (C) and the first brake B1It constitutes, the clutch outer ring (C) is connected firmly with the planet carrier (H), institute
Clutch (C) inner ring is stated to connect firmly with the internal gear (5)；First brake (the B1)It is fixed on shell, and up and down in symmetrical
Distribution.
3. a kind of more gear electric car power-driven systems containing V belt translation according to claim 1, it is characterised in that described
Braking system is by second clutch (B2)It constitutes, the second clutch (B2)Outer ring is connected with shell, inner ring and the first row
Star-wheel (7) is connected, the planet carrier (H) connects firmly.
4. a kind of more gear electric car power-driven systems containing V belt translation according to claim 1, it is characterised in that described
Differential mechanism all uses zerol bevel gear to be driven, and the differential mechanism is single planetary row structure, including the first center left gear (10), the
Two duplex left gears (11), the second duplex right gear (12), the third line star-wheel (13), the second center right gear (14), planet carrier
H；First center left gear (10) is engaged with the second duplex left gear (11), the second duplex right gear (12) with
The third line star-wheel (13) engagement, the third line star-wheel (13) are engaged with second center left gear (14)；Described
Two duplex left gears (11) are connected firmly with the second duplex right gear (12), and form revolute pair with the planet carrier (H)；It is described
The third rotation axis (III) of first center left gear (10) is connected firmly with left wheel (16), and the of second center left gear (14)
Four rotation axis (IV) are connected firmly with right wheel (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329939.5A CN110030336B (en) | 2019-04-23 | 2019-04-23 | Multi-gear electric automobile electric driving system with belt transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329939.5A CN110030336B (en) | 2019-04-23 | 2019-04-23 | Multi-gear electric automobile electric driving system with belt transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110030336A true CN110030336A (en) | 2019-07-19 |
| CN110030336B CN110030336B (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910329939.5A Active CN110030336B (en) | 2019-04-23 | 2019-04-23 | Multi-gear electric automobile electric driving system with belt transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3819521A4 (en) * | 2019-09-12 | 2021-08-18 | HE, Yaohua | All-gear stepless automatic transmission and speed ratio active control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872376A (en) * | 1987-06-04 | 1989-10-10 | Toyota Jidosha Kabushiki Kaisha | Transmission for a vehicle having improved performance for shifting between speed stages |
| CN105570419A (en) * | 2016-01-22 | 2016-05-11 | 吉林大学 | Electric driving device based on double-planet-row two-gear transmission |
| CN106347112A (en) * | 2016-09-19 | 2017-01-25 | 福州大学 | Double planetary gear row type electric drive assembly and drive method thereof |
| CN206000959U (en) * | 2016-08-31 | 2017-03-08 | 吉林大学 | A kind of electric drive axle system based on two shift transmissions |
| DE102017111049A1 (en) * | 2017-05-22 | 2018-04-19 | Schaeffler Technologies AG & Co. KG | Drive device for a motor vehicle |
-
2019
- 2019-04-23 CN CN201910329939.5A patent/CN110030336B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872376A (en) * | 1987-06-04 | 1989-10-10 | Toyota Jidosha Kabushiki Kaisha | Transmission for a vehicle having improved performance for shifting between speed stages |
| CN105570419A (en) * | 2016-01-22 | 2016-05-11 | 吉林大学 | Electric driving device based on double-planet-row two-gear transmission |
| CN206000959U (en) * | 2016-08-31 | 2017-03-08 | 吉林大学 | A kind of electric drive axle system based on two shift transmissions |
| CN106347112A (en) * | 2016-09-19 | 2017-01-25 | 福州大学 | Double planetary gear row type electric drive assembly and drive method thereof |
| DE102017111049A1 (en) * | 2017-05-22 | 2018-04-19 | Schaeffler Technologies AG & Co. KG | Drive device for a motor vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3819521A4 (en) * | 2019-09-12 | 2021-08-18 | HE, Yaohua | All-gear stepless automatic transmission and speed ratio active control system |
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| Publication number | Publication date |
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| CN110030336B (en) | 2021-01-15 |
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